CN210604908U - Injection pump motor reversal detection device - Google Patents
Injection pump motor reversal detection device Download PDFInfo
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- CN210604908U CN210604908U CN201921300538.9U CN201921300538U CN210604908U CN 210604908 U CN210604908 U CN 210604908U CN 201921300538 U CN201921300538 U CN 201921300538U CN 210604908 U CN210604908 U CN 210604908U
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- shading
- motor
- screw rod
- shaped seat
- light
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Abstract
The utility model provides a syringe pump motor reversal detection device, which comprises a frame body, a transmission component, a lead screw, a sliding seat, a meshing arm, a push rod, a detection circuit, a LED alarm lamp, a buzzing horn, a shading rotary piece, a shading U-shaped seat and a photoelectric coupler; the tail end of the motor output shaft is sleeved with a shading rotating piece, and the motor drives the shading rotating piece to rotate; the bottom of the shading rotary piece is provided with a shading U-shaped seat; the middle part of the shading U-shaped seat is provided with a U-shaped concave cavity, and two sides of the shading U-shaped seat are provided with light transmission grooves; a photoelectric coupler is arranged on the right side of the light-transmitting groove; three fan blades are arranged on the shading rotary piece, and a light-transmitting cavity is arranged between the fan blades; the bottom end of the fan blade is arranged in the U-shaped concave cavity of the shading U-shaped seat; photoelectric coupler, LED warning light, buzzing loudspeaker and detection circuitry electric connection. The utility model can simply and effectively detect whether the motor of the injection pump rotates reversely, and eliminate the risk of blood drawing caused by the reverse rotation of the motor; the device is convenient to install, accurate in detection and low in cost.
Description
Technical Field
The utility model belongs to the technical field of the syringe pump, a syringe pump motor reversal detection device is related to.
Background
At present, the injection pump has been widely used in each department of hospital, and the injection pump mainly is propelled through screw drive mechanism by motor drive, and in actual use, because of various service environment factors probably lead to the drive motor reversal, the motor reversal will lead to originally to the vein to inject the liquid medicine and become from the blood of vein anti-pumping, can cause very big injury to the patient like this. It is necessary to provide means for detecting the reverse rotation of the motor and to stop the alarm as soon as the reverse rotation of the motor is detected.
At present, the main methods for detecting the reverse rotation of the motor include a hall sensor method, an infrared method, and the like.
The Hall sensor mode is to trigger the signal output by the Hall sensor through the magnet to detect, is easy to realize, and has the defect of higher requirement on the installation position of the Hall sensor and the consistency of the strength of the magnet.
The infrared ray detection mode detects through detecting infrared ray shielding signal, also realizes very easily, and the shortcoming needs stability very high, causes the false detection easily when receiving vibrations.
Both the two methods have the defects of high requirements on installation and machine stability, and error detection is easily caused in the using process.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a reverse rotation detection device for a motor of an injection pump, which can simply and effectively detect whether the motor is reversed or not, and avoid and prevent the risk caused by reverse blood drawing of the injection pump; the device is convenient to install, accurate in detection and low in cost.
In order to solve the technical problem, the utility model discloses a technical scheme is:
a reverse rotation detection device for a motor of an injection pump comprises a frame body, a transmission assembly, a screw rod, a sliding seat, an engagement arm, a push rod, a detection circuit, an LED alarm lamp, a buzzer horn, a shading rotary piece, a shading U-shaped seat and a photoelectric coupler;
the frame body is a middle cavity, and the left side and the right side of the frame body are provided with mounting frames of mounting plates; the upper end of the frame body is also horizontally provided with a sliding column, and the left end and the right end of the sliding column are respectively fixedly arranged on the mounting plate; the bottom end of the frame body is also horizontally provided with a bottom plate, and a guide rail is arranged on the bottom plate;
a transmission assembly is fixedly arranged on the left mounting plate of the frame body and comprises a motor and a gear set, the output end of the motor is connected with the gear set, and the output end of the gear set is connected with the left end of a horizontally arranged screw rod; the motor drives the screw rod to rotate through the transmission of the gear set;
the tail end of the motor output shaft is sleeved with a shading rotating piece, and the motor drives the shading rotating piece to rotate;
the bottom of the shading rotary piece is provided with a shading U-shaped seat, the middle part of the shading U-shaped seat is provided with a U-shaped concave cavity, and two sides of the shading U-shaped seat are provided with light transmission grooves; a photoelectric coupler is arranged on the right side of the light-transmitting groove; the bottom end of the fan blade is arranged in the U-shaped concave cavity of the shading U-shaped seat.
The shading rotary piece is provided with three fan sheets, a light-transmitting cavity is arranged between the fan sheets, and the two fan sheets are symmetrically arranged along the axis of the output shaft of the motor; preferably, the other fan blade forms an included angle of 60 degrees or 120 degrees with the two symmetrical fan blades. When the shading rotating piece rotates, the fan piece and the light-transmitting cavity can rotate to the shading U-shaped seat in sequence, and the light-transmitting groove on the shading U-shaped seat is covered and light is transmitted out. At this time, the light source is blocked or light is transmitted to the photoelectric coupler, so that the photoelectric coupler generates a current with a specific change. The current is different change curve when the shading rotary piece rotates forwards and backwards, so whether the motor rotates backwards or not is known.
Photoelectric coupler, LED warning light, buzzing loudspeaker respectively with detection circuitry electric connection.
An engaging arm is sleeved on the screw rod and is engaged with the screw rod; the right end of the engaging arm is fixedly connected with a sliding seat, and the upper end and the lower end of the sliding seat are respectively sleeved on the sliding column and the guide rail;
preferably, the right end of the sliding seat is connected with a horizontally arranged push rod. When in use, the push rod is connected with the push handle of the injector.
Preferably, the upper end of the meshing arm is provided with an internal thread through hole, and the internal thread through hole is sleeved on the screw rod and meshed with the screw rod.
The motor drives the screw rod to rotate through the gear set, the screw rod rotates to drive the meshing arm to slide left and right, and the meshing arm drives the sliding seat and the push rod to slide left and right.
The application discloses syringe pump motor reversal detection device mainly uses does:
1. after the device is additionally arranged on the injection pump, the motor reverse rotation caused by interference or software errors is detected in the running process of the machine, and once the motor reverse rotation is detected, the machine is stopped to alarm so as to avoid the risk of blood reverse pumping.
2. When the injection pump is blocked during the process of injecting the medicine, the motor is reversed to release the pipeline pressure in order to relieve the swelling and discomfort of the patient, and the detection device can detect the number of times of motor reversal so as to ensure that the pressure is released without causing blood back-pumping.
The utility model has the advantages that:
the reverse rotation detection device can simply, effectively and stably detect whether the motor rotates reversely, and avoid and prevent risks caused by reverse blood drawing of the injection pump;
the device has the advantages of convenience in installation, accuracy in detection, low cost and the like.
Drawings
Fig. 1 is a schematic structural view of a syringe pump motor reversal detection device of the present invention;
fig. 2 is a front view of the syringe pump motor reversal detection device of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 2;
FIG. 5 is a pulse waveform formed by the optical coupler and the anti-dazzling screen when the motor rotates clockwise;
fig. 6 is a pulse waveform formed by the optical coupler and the light shielding sheet when the motor rotates anticlockwise.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1-6, a syringe pump motor reversal detection device comprises a frame body 1, a transmission assembly 2, a screw rod 3, a sliding seat 4, a meshing arm 5, a push rod 6, a detection circuit, an LED alarm lamp, a buzzer, a shading rotary piece 7, a shading U-shaped seat 8 and a photoelectric coupler 9;
the frame body 1 is a mounting frame sliding column with a middle cavity and mounting plates 11 arranged on the left side and the right side; a sliding column 12 is horizontally arranged at the upper end of the frame body 1, and the left end and the right end of the sliding column 12 are respectively fixedly arranged on the mounting plate 11; a bottom plate 13 is further horizontally arranged at the bottom end of the frame body 1, and a guide rail is arranged on the bottom plate 13;
a transmission assembly 2 is fixedly arranged on a left mounting plate 11 of the frame body 1, the transmission assembly 2 comprises a motor 21 and a gear set 22, an output shaft of the motor 21 is connected with the gear set 22, and an output end of the gear set 22 is connected with the left end of a horizontally arranged screw rod 3; the motor 21 drives the screw rod 3 to rotate through the transmission of the gear set 22;
the tail end of the output shaft of the motor 21 is sleeved with the shading rotary piece 7, and the motor 21 drives the shading rotary piece 7 to rotate;
the bottom of the shading rotary piece 7 is provided with a shading U-shaped seat 8, the middle part of the shading U-shaped seat 8 is provided with a U-shaped concave cavity 81, and two sides of the shading U-shaped seat are provided with light transmission grooves 82; a photoelectric coupler 9 is arranged on the right side of the light-transmitting groove 82;
three fan blades 71 are arranged on the shading rotary piece 7, a light-transmitting cavity is arranged between the adjacent fan blades 71, and the two fan blades 71 are symmetrically arranged by the axis of the output shaft of the motor 21; preferably, the other fan blade 71 forms an included angle of 60 degrees or 120 degrees with the two symmetrical fan blades 71. The bottom end of the fan blade 71 is arranged in the U-shaped concave cavity 81 of the shading U-shaped seat 8. When the light-shielding rotary member 7 rotates, the fan blade 71 and the light-transmitting cavity rotate to the light-shielding U-shaped seat 8 in sequence, and the light-transmitting groove 82 on the light-shielding U-shaped seat 8 is sometimes covered and sometimes light is sometimes transmitted. At this time, the photocoupler 9 is caused to form a pulse waveform (current) of a specific change by either blocking the light source or transmitting light to the photocoupler 9. Since the pulse waveforms of the light-shielding rotary member 7 in the normal rotation and the reverse rotation are different in variation curve, it is estimated whether the motor 21 is in the reverse rotation or not.
Preferably, the arc length ratio of the three light-transmitting cavities is 3: 2: 1.
and the photoelectric coupler 9, the LED alarm lamp and the buzzing horn are respectively electrically connected with the detection circuit.
An engaging arm 5 is sleeved on the screw rod 3, and the engaging arm 5 is engaged with the screw rod 3; the right end of the engaging arm 5 is fixedly connected with a sliding seat 4, and the upper end and the lower end of the sliding seat 4 are respectively sleeved on the sliding column 12 and the guide rail;
preferably, the right end of the sliding seat 4 is connected with a horizontally arranged push rod 6. In use, the push rod 6 is connected to the syringe push handle.
Preferably, the upper end of the engaging arm 5 is provided with an internal thread through hole, and the internal thread through hole is sleeved on the screw rod 3 and is engaged with the screw rod 3.
The motor 21 drives the screw rod 3 to rotate through the gear set 22, the screw rod 3 rotates to drive the meshing arm 5 to slide left and right, and the meshing arm 5 drives the sliding seat 4 and the push rod 6 to slide left and right.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (5)
1. The utility model provides a syringe pump motor reversal detection device which characterized in that: the device comprises a frame body, a transmission assembly, a screw rod, a sliding seat, an engaging arm, a push rod, a detection circuit, an LED alarm lamp, a buzzer, a shading rotary piece, a shading U-shaped seat and a photoelectric coupler;
the frame body is a middle cavity, and the left side and the right side of the frame body are provided with mounting frames of mounting plates; the upper end of the frame body is also horizontally provided with a sliding column, and the left end and the right end of the sliding column are respectively fixedly arranged on the mounting plate; the bottom end of the frame body is also horizontally provided with a bottom plate, and a guide rail is arranged on the bottom plate;
a transmission assembly is fixedly arranged on the left mounting plate of the frame body and comprises a motor and a gear set, the output end of the motor is connected with the gear set, and the output end of the gear set is connected with the left end of a horizontally arranged screw rod; the motor drives the screw rod to rotate through the transmission of the gear set;
the tail end of the motor output shaft is sleeved with a shading rotating piece, and the motor drives the shading rotating piece to rotate;
the bottom of the shading rotary piece is provided with a shading U-shaped seat;
the middle part of the shading U-shaped seat is provided with a U-shaped concave cavity, and two sides of the shading U-shaped seat are provided with light transmission grooves; a photoelectric coupler is arranged on the right side of the light-transmitting groove;
the shading rotary piece is provided with three fan blades, a light-transmitting cavity is arranged between every two adjacent fan blades, and the two fan blades are symmetrically arranged along the axis of the output shaft of the motor;
the bottom end of the fan blade is arranged in the U-shaped concave cavity of the shading U-shaped seat;
photoelectric coupler, LED warning light, buzzing loudspeaker respectively with detection circuitry electric connection.
2. The syringe pump motor reversal detection device of claim 1, characterized in that: an engaging arm is sleeved on the screw rod and is engaged with the screw rod; the right end of the engaging arm is fixedly connected with the sliding seat, and the upper end and the lower end of the sliding seat are respectively sleeved on the sliding column and the guide rail.
3. The syringe pump motor reversal detection device of claim 2, characterized in that: the right end of the sliding seat is connected with a push rod which is horizontally arranged.
4. The syringe pump motor reversal detection device according to any one of claims 1 to 3, characterized in that: the upper end of the meshing arm is provided with an internal thread through hole, and the internal thread through hole is sleeved on the screw rod and meshed with the screw rod.
5. The syringe pump motor reversal detection device of claim 4, wherein: one of the three fan sheets and the two symmetrical fan sheets form an included angle of 60 degrees or 120 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921300538.9U CN210604908U (en) | 2019-08-12 | 2019-08-12 | Injection pump motor reversal detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921300538.9U CN210604908U (en) | 2019-08-12 | 2019-08-12 | Injection pump motor reversal detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210604908U true CN210604908U (en) | 2020-05-22 |
Family
ID=70694804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921300538.9U Expired - Fee Related CN210604908U (en) | 2019-08-12 | 2019-08-12 | Injection pump motor reversal detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210604908U (en) |
-
2019
- 2019-08-12 CN CN201921300538.9U patent/CN210604908U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200522 Termination date: 20210812 |